A pipe inner wall grinding equipment

Abstract

This utility model relates to the field of pipe inner wall grinding technology, specifically a pipe inner wall grinding device, including a base frame, with a feeding section and a grinding section divided into left and right sides on the base frame. Two sets of symmetrically parallel and synchronously rotating conveying screws are arranged through the feeding section and the grinding section. An adjustable limiting screw is provided above the grinding section. An adjustable and downward-facing grinding cover is provided on the grinding end near the grinding section. A grinding roller is rotatably connected to the grinding cover. A debris collection mechanism communicating with the grinding cover is provided on the grinding section away from the feeding section. This utility model facilitates spiral grinding of the inner wall of pipes with larger diameters, improves the flexibility of grinding operation, reduces grinding energy consumption, and facilitates the collection of grinding debris.

Description

Technical Field

[0001] This utility model relates to the field of pipe inner wall grinding technology, specifically a pipe inner wall grinding device. Background Technology

[0002] Pipelines are fittings used to transport fluids. To improve the smoothness of pipeline transport, the inner wall of the pipeline needs to be polished. Existing pipeline internal polishing devices generally fix the pipeline and then insert the polishing mechanism into the pipeline to polish it circumferentially. For example, patent CN116871994A discloses an inner wall polishing device for ventilation duct production. However, this is suitable for polishing the inner wall of pipelines with smaller diameters. If the inner diameter of the pipeline is larger, the friction during circumferential polishing is greater, making it more laborious and energy-intensive. Therefore, a pipeline inner wall polishing device is designed to facilitate spiral polishing of the inner wall of pipelines with larger diameters, improve the flexibility of polishing operation, reduce polishing energy consumption, and facilitate the collection of polishing debris. Summary of the Invention

[0003] (a) Technical problems to be solved To address the shortcomings of existing technologies, this utility model provides a pipe inner wall grinding device that facilitates spiral grinding of the inner wall of pipes with larger diameters, improves the flexibility of grinding operations, reduces grinding energy consumption, and also facilitates the collection of grinding debris.

[0004] (II) Technical Solution To achieve the above objectives, this utility model provides the following technical solution: a pipe inner wall grinding device, including a base frame, on which a feeding section and a grinding section are divided into left and right sides. Two sets of symmetrically parallel and synchronously rotating conveying screws are arranged through the feeding section and the grinding section. A height-adjustable limiting screw is provided above the grinding section. A height-adjustable and downward-facing grinding cover is provided on the side of the grinding end near the grinding section. A grinding roller is rotatably connected to the grinding cover. A debris collection mechanism communicating with the grinding cover is provided on the side of the grinding section away from the feeding section.

[0005] In order to drive the grinding roller to rotate, the grinding cover is also provided with a grinding drive mechanism for driving the grinding roller to rotate. The grinding drive mechanism includes a lifting plate fixedly installed on the top of the grinding cover, and a grinding motor is fixedly installed on the lifting plate. The output shaft of the grinding motor is connected to the grinding roller through a transmission assembly.

[0006] To facilitate the lifting and lowering of the lifting plate, grinding cover, grinding roller, grinding motor, and transmission components as a whole, an L-shaped frame is provided on the grinding section and fixedly connected to the base frame. The lifting plate and the L-shaped frame are vertically guided and slidably engaged. A grinding lifting drive cylinder is vertically fixedly installed on the L-shaped frame, and the bottom output shaft of the grinding lifting drive cylinder is fixedly connected to the top of the lifting plate.

[0007] To collect the grinding debris, the debris collection and grinding mechanism includes a debris box and an exhaust fan fixedly mounted on a base frame. The input end of the exhaust fan is fixedly connected to one side of the debris box, and the other side of the debris box is fixedly connected to a connecting pipe extending above the lifting plate. The connecting pipe is fixedly connected to the grinding cover via a telescopic pipe. A debris hopper is provided inside the debris box, and an exhaust gap is formed between the side of the debris hopper facing the exhaust fan and the inner wall of the debris box. A filter screen is fixedly installed on the side of the debris hopper near the exhaust gap.

[0008] In order to adjust the lifting of the limit screw, a gantry frame is fixedly installed in the grinding section. A limit lifting drive cylinder is fixedly installed vertically on the top of the gantry frame. A lifting frame that slides and cooperates with the vertical guide of the gantry frame is fixedly installed on the bottom output shaft of the limit lifting drive cylinder. The limit screw is rotatably connected to the lifting frame laterally.

[0009] In order to drive the two conveying screws to rotate, a conveying motor is fixedly installed on the side of the grinding section away from the feeding section. The output shaft of the conveying motor is fixedly installed with a transmission shaft. The transmission shaft is connected to the two conveying screws through a transmission assembly. The conveying motor is set as a forward and reverse motor.

[0010] (III) Beneficial Effects Compared with the prior art, this utility model provides a pipe inner wall grinding device, which has the following beneficial effects: This pipe inner wall grinding equipment uses two sets of conveying screws that run through the feeding and unloading sections. This allows the pipe placed between the two sets of screws to be rotated and moved horizontally, facilitating the transport of the pipe from the feeding section to the grinding section. The adjustable grinding hood and grinding rollers work together to facilitate grinding of the pipe's inner bottom wall. During grinding, the pipe rotates and moves horizontally towards the grinding section, resulting in spiral friction relative to the inner wall, reducing the effort and energy consumption of circumferential grinding. During grinding, a debris collection mechanism is activated, allowing debris to be collected through the grinding hood. The grinding debris is collected and processed. After grinding, the two conveying screws can rotate in opposite directions, which can transport the ground pipe from the grinding section to the feeding section, making it easy to remove the ground pipe that has been moved to the feeding section. The setting of the limiting screw makes it easy to limit the pipe from the top during grinding, improving the stability of the grinding depth. This pipe inner wall grinding equipment is convenient for spiral grinding of the inner wall of pipes with larger diameters, improving the flexibility of grinding operation, reducing grinding energy consumption, and at the same time facilitating the collection of grinding debris. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of the present invention, including the pipe to be ground. Figure 2 This is a structural schematic diagram of the entire pipe to be ground from other perspectives of the present invention; Figure 3 This is a schematic diagram of the overall structure of this utility model; Figure 4 This is a schematic diagram of the structure of the base frame, the conveying screw, and the limiting screw of this utility model. Figure 5 This is a schematic diagram of the structure of the limit screw, gantry frame and limit lifting drive cylinder of this utility model; Figure 6 This is a schematic diagram showing the disassembled structure of the grinding cover and the debris collection mechanism of this utility model. Figure 7 This is a structural schematic diagram of the grinding cover and debris collection mechanism of this utility model from other perspectives.

[0012] The following components are labeled in the attached diagram: 1. Base frame; 2. Conveying screw; 3. Limiting screw; 4. Grinding cover; 5. Grinding roller; 6. Lifting plate; 7. Grinding motor; 8. Transmission assembly one; 9. L-shaped frame; 10. Grinding lifting drive cylinder; 11. Telescopic pipe; 12. Connecting pipe; 13. Debris box; 14. Exhaust fan; 15. Debris hopper; 16. Filter screen; 17. Gantry frame; 18. Limiting lifting drive cylinder; 19. Lifting frame; 20. Conveying motor; 21. Transmission assembly two. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0014] Please see Figure 1-7 A pipe inner wall grinding device includes a base frame 1, which is divided into a feeding section and a grinding section on the left and right sides. Two sets of symmetrically parallel and synchronously rotating conveying screws 2 are installed through the feeding section and the grinding section. A lifting and adjusting limiting screw 3 is installed above the grinding section. A lifting and adjusting grinding cover 4 facing downward is installed on the side of the feeding section near the grinding section. A grinding roller 5 is rotatably connected to the grinding cover 4. A debris collection mechanism communicating with the grinding cover 4 is installed on the side of the grinding section away from the feeding section.

[0015] Specifically, the grinding cover 4 is also equipped with a grinding drive mechanism that drives the grinding roller 5 to rotate. The grinding drive mechanism includes a lifting plate 6 fixedly installed on the top of the grinding cover 4. A grinding motor 7 is fixedly installed on the lifting plate 6. The output shaft of the grinding motor 7 is connected to the grinding roller 5 through a transmission component 8. When the grinding motor 7 is started, the output shaft of the grinding motor 7 rotates. Through the transmission of the transmission component 8, the grinding roller 5 is driven to rotate. The rotating grinding roller 5 contacts the inner wall of the pipe and grinds the inner wall of the pipe.

[0016] Specifically, the grinding section is equipped with an L-shaped frame 9 that is fixedly connected to the base frame 1. The lifting plate 6 is vertically guided and slidably engaged with the L-shaped frame 9. A grinding lifting drive cylinder 10 is vertically fixedly installed on the L-shaped frame 9. The bottom output shaft of the grinding lifting drive cylinder 10 is fixedly connected to the top of the lifting plate 6. Through the grinding lifting drive cylinder 10, the lifting plate 6, grinding cover 4, grinding roller 5, grinding motor 7 and transmission component 8 can be easily lifted and lowered as a whole.

[0017] Specifically, the debris collection and grinding mechanism includes a debris box 13 and an exhaust fan 14 fixedly installed on the base frame 1. The input end of the exhaust fan 14 is fixedly connected to one side of the debris box 13, and the other side of the debris box 13 is fixedly connected to a connecting pipe 12 extending above the lifting plate 6. The connecting pipe 12 is fixedly connected to the grinding cover 4 through a telescopic pipe 11. A debris hopper 15 is provided inside the debris box 13. The side of the debris hopper 15 facing the exhaust fan 14 forms an exhaust gap with the inner wall of the debris box 13. A filter screen 16 is fixedly installed on the side of the debris hopper 15 near the exhaust gap. When the exhaust fan 14 is started, a negative pressure is formed inside the debris box 13. Then, the connecting pipe 12, the telescopic pipe 11, and the grinding cover 4 draw the air containing debris from the grinding area into the debris hopper 15 inside the debris box 13. The air is then filtered by the filter screen 16 and discharged by the exhaust fan 14.

[0018] Specifically, a gantry frame 17 is fixedly installed in the grinding section. A limit lifting drive cylinder 18 is vertically fixedly installed on the top of the gantry frame 17. A lifting frame 19, which is vertically guided and slidably engaged with the gantry frame 17, is fixedly installed on the bottom output shaft of the limit lifting drive cylinder 18. A limit screw 3 is horizontally rotatably connected to the lifting frame 19. The limit lifting drive cylinder 18 facilitates the overall lifting of the lifting frame 19 and the limit screw 3. The limit screw 3 facilitates the limiting of the outer top of the pipe. At the same time, the limit screw 3, together with two conveying screws 2, provides spiral parallel conveying of the pipe, ensuring the stability of the grinding of the inner wall of the pipe.

[0019] Specifically, a transmission motor 20 is fixedly installed on the side of the grinding section away from the feeding section. A drive shaft is fixedly installed on the output shaft of the transmission motor 20. The drive shaft is connected to the two transmission screws 2 through a transmission assembly 21. The transmission motor 20 is configured as a forward and reverse motor. When the transmission motor 20 is started, the output shaft of the transmission motor 20 rotates clockwise or counterclockwise. Through the transmission cooperation of the two transmission assemblies 21, the two transmission screws 2 can be driven to rotate clockwise or counterclockwise synchronously. Furthermore, both the first transmission assembly 8 and the second transmission assembly 21 can adopt a sprocket and chain or belt and pulley transmission method, preferably a sprocket and chain transmission method.

[0020] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A pipe internal wall polishing apparatus, characterized by: Includes a base frame (1), which is divided into a feeding section and a grinding section on the left and right sides. Two sets of symmetrically parallel and synchronously rotating conveying screws (2) are installed through the feeding section and the grinding section. A lifting and adjusting limiting screw (3) is installed above the grinding section. A lifting and adjusting grinding cover (4) facing downward is installed on the side of the feeding section near the grinding section. A grinding roller (5) is rotatably connected to the grinding cover (4). A debris collection mechanism communicating with the grinding cover (4) is installed on the side of the grinding section away from the feeding section.

2. A pipe internal wall skiving apparatus according to claim 1, characterised in that: The grinding cover (4) is also provided with a grinding drive mechanism for driving the grinding roller (5) to rotate. The grinding drive mechanism includes a lifting plate (6) fixedly installed on the top of the grinding cover (4). A grinding motor (7) is fixedly installed on the lifting plate (6). The output shaft of the grinding motor (7) is connected to the grinding roller (5) through a transmission component (8).

3. A pipe internal wall skiving apparatus according to claim 2, characterised in that: The grinding section is provided with an L-shaped frame (9) that is fixedly connected to the base frame (1). The lifting plate (6) is vertically guided and slidably engaged with the L-shaped frame (9). A grinding lifting drive cylinder (10) is vertically fixedly installed on the L-shaped frame (9). The bottom output shaft of the grinding lifting drive cylinder (10) is fixedly connected to the top of the lifting plate (6).

4. The pipe inner wall grinding equipment according to claim 3, characterized in that: The debris collection and grinding mechanism includes a debris box (13) and a blower (14) fixedly installed on the base frame (1). The input end of the blower (14) is fixedly connected to one side of the debris box (13). The other side of the debris box (13) is fixedly connected to a connecting pipe (12) extending into the top of the lifting plate (6). The connecting pipe (12) is fixedly connected to the grinding cover (4) through a telescopic pipe (11). A debris hopper (15) is provided inside the debris box (13). A ventilation gap is formed between the side of the debris hopper (15) facing the blower (14) and the inner wall of the debris box (13). A filter screen (16) is fixedly installed on the side of the debris hopper (15) near the ventilation gap.

5. A pipe internal wall skiving apparatus according to claim 4, wherein: The grinding section is fixedly installed with a gantry frame (17), and a limit lifting drive cylinder (18) is fixedly installed vertically on the top of the gantry frame (17). The bottom output shaft of the limit lifting drive cylinder (18) is fixedly installed with a lifting frame (19) that slides vertically with the gantry frame (17). The limit screw (3) is rotatably connected to the lifting frame (19).

6. A pipe internal wall skiving apparatus according to claim 5, wherein: A conveyor motor (20) is fixedly installed on the side of the grinding section away from the feeding section. A transmission shaft is fixedly installed on the output shaft of the conveyor motor (20). The transmission shaft is connected to the two conveyor screws (2) through a transmission assembly (21). The conveyor motor (20) is configured as a forward and reverse motor.

Images